docs: def find_proxy_for_url(self, url, host):
          """
          Call ``FindProxyForURL()`` in the PAC file with the given arguments.
  
          :param str url: The full URL.
          :param str host: The URL's host.
          :return: Result of evaluating the ``FindProxyForURL()`` JavaScript function in the PAC file.
          :rtype: str
          """
          return self._context.evaljs("FindProxyForURL(dukpy['url'], dukpy['host'])", url=url, host=host)